News

Read the latest news and announcements from traffic safety interest groups and about traffic safety topics here.

Improving Transportation Infrastructure Resilience through Post-event Damage Inspection (PDI) and Postevent Engineering Investigation (PEI)

  • April 8th, 2025

This document summarizes the highway infrastructure resilience framework and practices for PostEvent Damage Inspection (PDI) and Post-Event Engineering Investigation (PEI) developed under the FHWA Task Order “Framework for Infrastructure Resilience and Post-Hazard Response.” The document describes the framework components: pillars, lenses, dimensions and indicators. It outlines the steps suggested for the evaluation of the resilience […]

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State DOT Certification Programs for Materials Sampling and Testing Personnel

  • April 8th, 2025

State departments of transportation (DOTs) are responsible for the construction and maintenance of the nation’s roadway infrastructure, which requires quality materials and workmanship verified through inspection and testing. NCHRP Synthesis 638: State DOT Certification Programs for Materials Sampling and Testing Personnel, from TRB’s National Cooperative Highway Research Program, documents practices used by DOTs for implementing […]

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TRANSPORTATION STATISTICS ANNUAL REPORT 2024

  • April 4th, 2025

Transportation is fundamental to the vibrancy of the Nation and facilitates economic prosperity and quality of life. It enables people to engage in productive pursuits and experience the social interactions that take full advantage of geographic specialization and diffusion. An efficient and resilient transportation system and its seamless operation underpin the overall efficiency and resilience […]

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Quantitative Safety Analyses for Highway Applications

  • April 4th, 2025

Development of the AASHTO Highway Safety Manual began from a TRB conference session and a workshop, both held in 1999, that identified the need for a traffic safety document analogous to the role of the Highway Capacity Manual for traffic operations. NCHRP Research Report 1140: Quantitative Safety Analyses for Highway Applications, from TRB’s National Cooperative Highway Research Program, describes […]

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Bridge and Tunnel Strikes

  • April 4th, 2025

Bridge and tunnel strikes inflict serious damage to vehicles, highway bridges, and tunnels; cause injuries and fatalities; and impose detours and costly delays on highway users. Attempts by state departments of transportation (DOTs) and other bridge and tunnel owners to prevent bridge and tunnel strikes include signing, lighting, height detection systems, and actuated warning devices. […]

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TRANSPORTATION STATISTICS ANNUAL REPORT 2024

  • March 28th, 2025

Transportation is fundamental to the vibrancy of the Nation and facilitates economic prosperity and quality of life. It enables people to engage in productive pursuits and experience the social interactions that take full advantage of geographic specialization and diffusion. An efficient and resilient transportation system and its seamless operation underpin the overall efficiency and resilience […]

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How drivers adapt to partial automation safeguards over time

  • March 28th, 2025

Most partially automated systems have safeguards to counteract driver disengagement, but little is known about how they affect driver behavior over time. This naturalistic observation study investigated how the behavior of 14 drivers who had no previous partial automation experience evolved over a month of exposure to the Tesla Autopilot system in a model year […]

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Understanding Construction Change Orders

  • March 28th, 2025

This report identifies common issues that result in change orders and cause project delays and overruns, organized into three main categories relating to the quality of technical project development work, influences of organizational culture, and uncertainty introduced by financial forces. It also describes best practices to minimize and mitigate change orders and highlights noteworthy project […]

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Public Roads: Winter 2025

  • March 7th, 2025

In 2021, Congress passed the Infrastructure Investment and Jobs Act, also known as the Bipartisan Infrastructure Law (BIL), which reauthorized surface transportation programs. This legislation allocated approximately $350 billion over a 5-year period to Federal highway programs with a focus on repairing roadways and bridges, with the opportunity to create jobs, boost the economy, and […]

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